Expected August 2027
Distance
Cutoff
Terrain
The Two Tunnels Railway races on 16 August 2026 not only takes in many of Bath's beautiful attractions, but also has the longest underground section for each race distance in the UK. Distances include 50km (solo/pairs), 5 x 10km Relay, Marathon, Half Marathon, 10km, 5km plus 2km and 500m Colourburst races.
Longest underground section for each race distance in the UK
Two Tunnels: Devonshire Tunnel (408m) and Combe Down Tunnel (1672m)
Bath's beautiful attractions
Start / Finish
Brickfields Park
Brickfields Park
Terrain
Route
Getting There
What you get
Finisher medal
Race photos
Food after the finish
Professional photos available to purchase within 48hrs
Results posted evening of event
On the day
Toilets
Bag drop
Food vendors
Marshals on course
First aid on course
Water on course
Before you enter
Other questions
The event takes place on Sunday, 16 August 2026.
The event is based at Brickfields Park in Bath, Somerset, UK.
The course incorporates the Two Tunnels, refurbished railway tunnels that are now shared pathways. The Devonshire Tunnel is 408m long and the Combe Down Tunnel is 1672m long, making it the longest underground section for each race distance in the UK.
Yes, the tunnels are well lit and well surfaced with a smooth tarmac surface.
Yes, there is a 5 x 10km relay race.
Entry fee
Registration isn't open yet. We'll show pricing when the organiser confirms.Bath, United Kingdom
Expected August 2027
Provisional date, around Aug 15Are you the organiser of Two Tunnels Railway Races: August?
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